Phinnaeus Gage, your brother-in-law's leather work is stunning. I dabble in leather, but it's mostly making armor and such, nothing super decorative like that. I'll make sure to get in touch if I ever need something of that caliber.

As for the "Bitcoin Man" costume, it wouldn't be too hard (the jacket, pants, and cape at least). The difficulty would come from getting the logo all over...I could silk screen it, I suppose, or use Spoonflower.com (probably easier, cheaper, and better looking). The cape I'd do a single, big applique.

I don't know what you mean by the shoes -- generally Chucks come in fun colors, and aren't terribly uncomfortable.

I would have to do some research on the mask, and send you some sketches to make sure I've got the right idea.

Bolo would be pretty easy, I think.

My rough guesstimate for something like that would be $200/set. I can do more specific calculations if you're really interested. You'd be behind ZodiacDragon84 though, so it'd be a little while before I could get started.